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Lights constantly on with timer

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"It is a countdown time."

Hi. It would be helpful to have a bit more information.
are you stating cause and effect? - are you talking about a lightswitch?
Is it in your home, or in a public area?
If a lightswitch, Do you know the make?
Is it pheumatic, mechanical, or electronic?
how about a picture?

sorry to answer with a load of questions, but difficult for anyone to make any suggestions without more to go on!
 
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Avo Mk8 said:
"It is a countdown time."

Hi. It would be helpful to have a bit more information.
are you stating cause and effect? - are you talking about a lightswitch?
Is it in your home, or in a public area?
If a lightswitch, Do you know the make?
Is it pheumatic, mechanical, or electronic?
how about a picture?

sorry to answer with a load of questions, but difficult for anyone to make any suggestions without more to go on!
Click to expand...
It is a manual rotary intermatic 30 minute countdown timer. I am working in a module that has a lower level and upper level. On the lower level there is the same timer and it works properly. The one on the upper level does not work at all. Lights are on all the time.
 
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Hi
that's really helpful
is it like this: https://www.intermatic.com/en/in-wall-controls/spring-wound-countdown-timers/ff30mh

or the photo below.
as a clockwork timer, if the knob doesn't wind back to 'off' by itself, I guess the mechanical mechanism is faulty, in which case it would be cheaper to get a new one rather than repair the existing (Unless you happen to be a watchmaker turned electrician!)

Mind you, if turning the knob to 'off' doesn't make the lights go out, it must be a faulty microswitch in the timer, (or some other strange electrical fault supplying power to the lights). Replacement of a faulty microswitch might be possible.
You need an electrician with a meter to check if it's the microswitch stuck, of if there is another fault.
 

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Avo Mk8 said:
Hi
that's really helpful
is it like this: https://www.intermatic.com/en/in-wall-controls/spring-wound-countdown-timers/ff30mh

or the photo below.
as a clockwork timer, if the knob doesn't wind back to 'off' by itself, I guess the mechanical mechanism is faulty, in which case it would be cheaper to get a new one rather than repair the existing (Unless you happen to be a watchmaker turned electrician!)

Mind you, if turning the knob to 'off' doesn't make the lights go out, it must be a faulty microswitch in the timer, (or some other strange electrical fault supplying power to the lights). Replacement of a faulty microswitch might be possible.
You need an electrician with a meter to check if it's the microswitch stuck, of if there is another fault.
Click to expand...
The timer is like the photo. The timer works properly. Does it matter where the hot goes on the line or load? There are two black wires coming out the back of the device.
 
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It shouldn't matter which way round it is connected.
if you can isolate the supply, you could try disconnecting one or both wires, keeping them away from each other and everything else (preferably insulating them), turn the power back on and make sure the lights no longer come on.
That would confirm the switch is broken!
I suspect easiest fix is to buy another timer!
 
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